Questions

In physics, the dynamo theory proposes a mechanism by which a celestial body such as Earth or a star generates a magnetic field.

Earth's crust core contains a large amount of iron and nickel is the evidence of the dynamo theory.

Chennai port is known for its Coastal breakwater, artificial, large seaport type of harbor.

Chennai Port, formerly known as Madras Port, is the second largest container port of India, behind the Nhava Sheva Port, and the largest port in the Bay of Bengal. It is the third oldest port among the 13 major ports of India

Valentina Tereshkova was the first woman to walk on the moon.

M.Visweswariah is known as the Father of Indian Engineering.

Father of Indian Printing - James Hickey

Father of Indian Green Revolution - Dr. M.S. Swaminathan

Father of Indian Painting - Nandalal Bose.

An invention that improved safety for railway passengers is Air brakes. With the use of air brakes using compressed air, become more effective by preventing many train accidents.